133849808 has 10 divisors (see below), whose sum is σ = 259334034. Its totient is φ = 66924896.

The previous prime is 133849801. The next prime is 133849861. The reversal of 133849808 is 808948331.

It can be written as a sum of positive squares in only one way, i.e., 131515024 + 2334784 = 11468^2 + 1528^2 .

It is a super-2 number, since 2×133849808² = 35831542203273728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133849801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4182791 + ... + 4182822.

Almost surely, 2^133849808 is an apocalyptic number.

It is an amenable number.

133849808 is a deficient number, since it is larger than the sum of its proper divisors (125484226).

133849808 is an equidigital number, since it uses as much as digits as its factorization.

133849808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8365621 (or 8365615 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 133849808 is about 11569.3477776407. The cubic root of 133849808 is about 511.5317373964.

The spelling of 133849808 in words is "one hundred thirty-three million, eight hundred forty-nine thousand, eight hundred eight".